AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 345

• Manufacturer Part Number: AT91SAM7S256D-AU
• Description: ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
• Manufacturer: Atmel
• Series: SAM7S256r

Specifications of AT91SAM7S256D-AU

• Rohs: yes
• Core: ARM
• Processor Series: AT91SAM
• Data Bus Width: 16 bit/32 bit
• Maximum Clock Frequency: 55 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-64
• Mounting Style: SMD/SMT
• Interface Type: 2-Wire, I2S, SPI, USART
• Length: 7 mm

30.10 Two-wire Interface (TWI) User Interface
Table 30-4.
Offset
0x00
0x04
0x08
0x0C
0x10
0x20
0x24
0x28
0x2C
0x30
0x34
0x38 - 0xFC
Register Mapping
Register
Control Register
Master Mode Register
Slave Mode Register
Internal Address Register
Clock Waveform Generator Register
Status Register
Interrupt Enable Register
Interrupt Disable Register
Interrupt Mask Register
Receive Holding Register
Transmit Holding Register
Reserved
TWI_CWGR
TWI_MMR
TWI_IADR
TWI_SMR
TWI_RHR
TWI_THR
TWI_IMR
TWI_IER
TWI_IDR
TWI_CR
TWI_SR
Name
–
–
SAM7S Series [DATASHEET]
Read-write
Read-write
Read-write
Read-write
Read-only
Read-only
Read-only
Write-only
Write-only
Write-only
Write-only
Access
–
–
6175M–ATARM–26-Oct-12
0x0000F009
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
Reset
N / A
N / A
N / A
–
–
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